Can anyone please help in suggesting some relevant papers on "polymer-coated hydride particles" that give the product in a powdered form, not a composite?
Yes, it is possible to retain the powdered or particle form of the hydride particles after coating them with a polymer. This is usually done by using an electrostatic charge to attach the polymer to the particles, which is then cured in place. This process helps to hold the particles in their original form without changing their shape or size.